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Nuclear Power Engineering

Nuclear Power Engineering
Unit of radioactivity is

Fermi
Angstrom
Curie
Barn

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Nuclear Power Engineering
H₂ is a better coolant than CO₂, due to its relatively

Lower neutron capture cross-section
Non-reactivity to uranium
Lower density
Higher specific heat

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Nuclear Power Engineering
Heavy water used in the nuclear reactors to slow down the speed of neutrons is

A compound of oxygen and deuterium
None of these
Highly purified water
Water having dissolved salts of heavy metals

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Nuclear Power Engineering
Fission of U-235 on slow neutron bombardment can be represented by

92U235 + 0n1 → 92U236 + 3 0n1+ Q (energy)
92U235 + 0n1 → 56Ba143 + 36Kr90
92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy)
92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1

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Nuclear Power Engineering
Uranium is recovered from its ore (pitchblende) by

Smelting in a furnace
Leaching with sulphuric acid
Dissolving in water
Froth floatation technique

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Nuclear Power Engineering
Radioactive decay of a material involves a __________ order reaction.

First
Third
Zero
Second

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